Comparison

Eye Handbook vs CodeTick

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Eye Handbook

A comprehensive eye care reference app for ophthalmologists, optometrists, and students. It offers diagnostic tools, treatment references, calculators, educational resources, and community forums to support eye care professionals.

Highlights
  • Diagnostic and treatment reference
  • Eye calculators (visual acuity, diabetic retinopathy, etc.)
  • Medication and pharmacopeia
  • Ophthalmology and optometry journals
  • Patient education tools
  • Peer-to-peer forums
  • Eye atlas and diagrams
Features
Read full description

Eye Handbook (EHB) is an eye care reference book and an all-in-one app for Ophthalmologists, Optometrists as well as Students/Residents pursuing the field of eye care. The Eye Handbook is a smartphone diagnostic and treatment reference app for Ophthalmologists and Optometrists. Below is a list of some of the common features. -Eye Calculators -Transposition Calculator -Visual Acuity Calculator -Age to bifocal -Diabetic Retinopathy Severity Calculator -Dry Eye Disease Calculator -Glaucoma Risk Calculator -Thyroid Eye Disease Calculator -Retinoblastoma Calculator -EHB Indirect Camera -Ocular Trauma Score -Plaquenil Dosing -IOP-CCT -Pupillary Distance -DDX -Testing -ICD9 coding -ICD9 to ICD10 converter -ICD10 coding -Audio, Video downloads -Directory -Eye Atlas -Eye Wiki -Peer-to-peer Forums -Connecting with patients -Ophthalmology and Optometry Journals -Medication and Pharmacopeia -Journals -Eye Diagrams -Patient Education tools -RSS Feeds -Acronym List -Dictionary -Eponyms -Genetics -Mnemonics -Workups -Treatment Reference -Vision Symptoms Cards If you have content that you would like to contribute; please contact us at eyehandbook@gmail.com. Please feel free to contact us with any questions you may have. We are constantly striving to improve this application and welcome your feedback. www.eyehandbook.com The Eye Handbook Team

About

CodeTick

Features
Read full description

Free, always. No subscription, no paywall, no sign-up, no data collected about your patients. Made by a physician who wanted a calmer, clearer code timer for the bedside. CodeTick is a CPR, BLS and ACLS code timer for trained healthcare teams, with Megacode practice and an ECG rhythm course built in. DURING A CODE • CPR timer with 2-minute rhythm check reminders and a spoken countdown • Compression metronome and ventilation cues, even with the screen locked • Epinephrine interval reminders, shock and drug counters • Adult, pediatric and newborn modes • Live algorithms (cardiac arrest, bradycardia, tachycardia, post-ROSC) that follow the case as you log it • Procedures and access: IV, IO, airway, ETCO2, pads and lines • Post-ROSC checklist, re-arrest in one tap • Live timeline and a full code log you can edit before sharing • If the app closes mid-code, it offers to resume where you left off AFTER A CODE • Debrief: pauses, estimated CPR fraction from your taps, time to first shock and first epinephrine • Share the log or a PDF code sheet MEGACODE AND ACLS PRACTICE • Guided Megacode scenarios (adult, pediatric, neonatal) that coach you step by step • Test station: run a case on your own, get a percentage score and a debrief • Practice cases at easy, medium or hard, with timed clues and quiz questions • My training: best score per case, trends and weak spots • Training runs on a sped-up clock and is always labelled TRAINING ECG RHYTHM PRACTICE • A step-by-step ECG course with clear diagrams • 12-lead views, STEMI patterns and calipers • Rhythm flashcards and quizzes: VF, VT, torsades, AF, flutter, heart blocks and more MAKE IT YOURS • 7 themes, including Night Shift and High Contrast • Rearrange buttons, resize panels, add custom buttons • Text size, UI size and a Reduced motion option IMPORTANT CodeTick is a timer, reminder, documentation and practice aid only. It does not diagnose rhythms, interpret a patient's ECG, determine treatment, confirm a pulse, measure compression quality, confirm airway placement, or calculate doses. It does not replace clinical judgment, formal resuscitation training or certification, institutional protocols, or team leader decisions. The practice tools are for learning and do not grant or replace certification. CodeTick is independent and is not affiliated with or endorsed by the American Heart Association, the American Academy of Pediatrics or any other organization. NRP is a registered trademark of the American Academy of Pediatrics.

Screenshots

Eye Handbook4 screens
CodeTick4 screens

Verdict

The call

The clearest difference is update cadence: CodeTick at every 6 days against Eye Handbook's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Eye Handbook ships an update every 3 weeks, CodeTick every 6 days. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level
Eye Handbook versus CodeTick: the parameters behind the verdict, then further details
ParameterEye HandbookCodeTick
PriceFreeFree
Rating4.8 (1.2K ratings) — better—
Positive reviews82.2% of reviews—
Number of ratings1.2K — better—
Update frequencyEvery 3 weeksEvery 6 days — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.4
Further details — not scored
Size480 MB107 MB
Age rating17+17+
DeveloperCloud Nine Development LLCLORENZ ANGELO ROXAS ACANTILADO

Bugs and requests

Eye Handbook

Reported bugs

3 issues
  • Registration process issues
  • Compatibility problems with newer iOS versions
  • Incorrect medication information

Requested features

4 requests
  • Add Tumbling E and Landolt C charts
  • Improve search functionality
  • Provide a paid ad-free version
  • Optimize for larger screens (iPad)

CodeTick

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Eye Handbook

No in-app purchases

None

CodeTick

No in-app purchases

Questions

Is Eye Handbook free?
Eye Handbook is free to download, with no in-app purchases.
Is CodeTick free?
CodeTick is free to download, with no in-app purchases.
Do Eye Handbook or CodeTick have ads?
Both Eye Handbook and CodeTick show ads.
Which is updated more often, Eye Handbook or CodeTick?
Eye Handbook ships an update every 3 weeks, and CodeTick every 6 days. Most recently, Eye Handbook was updated on October 29, 2026 and CodeTick on October 25, 2026.

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